66807140

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{42283}}^1$

素因数の和:42371

約数の個数: 24

約数和(自身を含む): 142074240

約数和(自身を除く): 75267100

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 42283, 84566, 169132, 211415, 422830, 845660, 3340357, 6680714, 13361428, 16701785, 33403570, 66807140]

約数ペア:

[(1, 66807140), (2, 33403570), (4, 16701785), (5, 13361428), (10, 6680714), (20, 3340357), (79, 845660), (158, 422830), (316, 211415), (395, 169132), (790, 84566), (1580, 42283)]